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WO2021114168A1 - Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage - Google Patents

Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage Download PDF

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Publication number
WO2021114168A1
WO2021114168A1 PCT/CN2019/124808 CN2019124808W WO2021114168A1 WO 2021114168 A1 WO2021114168 A1 WO 2021114168A1 CN 2019124808 W CN2019124808 W CN 2019124808W WO 2021114168 A1 WO2021114168 A1 WO 2021114168A1
Authority
WO
WIPO (PCT)
Prior art keywords
data frame
feedback control
confirmation feedback
block confirmation
continuous data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/124808
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English (en)
Chinese (zh)
Inventor
董贤东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to EP19955846.1A priority Critical patent/EP4075696A4/fr
Priority to US17/784,574 priority patent/US12250077B2/en
Priority to PCT/CN2019/124808 priority patent/WO2021114168A1/fr
Priority to CN201980003532.1A priority patent/CN113261221B/zh
Publication of WO2021114168A1 publication Critical patent/WO2021114168A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

Definitions

  • This application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular relates to a block confirmation feedback control method, device, communication device, and storage medium.
  • the Institute of Electrical and Electronics Engineers established a Study Group (SG, Study Group) to study the next-generation mainstream Wi-Fi technology, namely the IEEE 802.11be standard.
  • the scope of the study is: Wi-Fi transmission with a maximum bandwidth of 320 MHz and multiple frequency bands Convergence and collaboration technology, etc.
  • the proposed vision is at least four times faster than the existing IEEE802.11ax standard.
  • the main application scenarios of the new technology are video transmission, augmented reality (AR, Augmented Reality), virtual reality (VR, Virtual Reality), etc.
  • the aggregation and coordination technology of multiple frequency bands means that Wi-Fi devices communicate in 2.4GHz, 5.8GHz and 6-7GH and other different frequency bands at the same time, or in the same frequency band in different bandwidth transmission connections.
  • a block acknowledgment (BA, Block ACK) method is used to feedback the reception of the data frame.
  • a block confirmation feedback control method wherein, when applied to a first communication device, the method includes:
  • Block confirmation feedback control flag For each of the multiple transmission connections that transmit continuous data frames, send a block confirmation feedback control flag, where the block confirmation feedback control flag is used to indicate the block confirmation feedback to continue opening or terminating the transmission connection .
  • the block confirmation feedback control identifier further includes:
  • the first identification information is used to indicate the data frame sequence number of the continuous data frame.
  • the block confirmation feedback control identifier further includes:
  • the second identification information is used to indicate the communication identifier (TID, Traffic Identifier) of the continuous data frame.
  • the sending block confirmation feedback control identifier includes: sending a message frame carrying the confirmation feedback control identifier.
  • the sending the block confirmation feedback control identifier includes: sending the last data frame of the continuous data frame carrying the confirmation feedback control identifier.
  • the method further includes:
  • the sending the last data frame of the continuous data frame carrying the confirmation feedback control identifier includes:
  • the last data frame of the continuous data frame carrying the acknowledgement feedback control identifier is sent.
  • a block confirmation feedback control method wherein, when applied to a second communication device, the method includes:
  • the continuous data frame is determined according to the data frame sequence number indicated by the first identification information in the block confirmation feedback control identification.
  • the method further includes:
  • the continuous data frame is determined according to the communication identifier TID indicated by the second identification information in the block confirmation feedback control identification.
  • the method further includes:
  • the transmission connection of the associated management frame is kept in an open state.
  • the block confirmation feedback control identifier further includes:
  • the block confirmation feedback control identifier further includes:
  • the second identification information is used to indicate the communication identifier TID of the continuous data frame.
  • the block confirmation feedback control identifier is used to indicate that the transmission connection for maintaining the associated management frame is in an open state.
  • the first sending submodule is configured to send a message frame carrying the confirmation feedback control identifier.
  • the first sending module includes:
  • the device further includes:
  • the first receiving module is configured to receive a block confirmation BA based on the continuous data frame
  • the first control module is configured to enable block confirmation feedback of the transmission connection for retransmission of the data frame indicated by the BA.
  • the second sending submodule includes:
  • a block confirmation feedback control device which is applied to a second communication device, and the device includes: a second receiving module and a second control module, wherein,
  • the second determining module is configured to determine the continuous data frame according to the communication identifier TID indicated by the second identification information in the block confirmation feedback control identifier.
  • the device further includes:
  • the third control module is configured to keep the transmission connection of the associated management frame in an open state according to the indication of the block confirmation feedback control identifier.
  • the second receiving module includes:
  • the receiving submodule is configured to receive the block confirmation feedback control identifier carried in the last data frame of the continuous data frame.
  • the second sending module is configured to send a block confirmation BA according to the reception of the continuous data frame
  • a communication device including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs all When the executable program is described, the steps of the block confirmation feedback control method described in the first aspect and the second aspect are executed.
  • Fig. 3 is a schematic diagram showing the structure of a block confirmation feedback control identifier according to an exemplary embodiment
  • the BA feedback mechanism for a single transmission connection is shown in Figure 1 and includes:
  • the BA that initiates multiple transmission connections under one transmission connection feeds back termination frames, considering that Wi-Fi is based on a competitive access mechanism and there may be hidden nodes, the transmission of multiple termination frames may cause a higher probability of communication conflicts. Causes retransmission, which is not conducive to power saving of equipment and reduces spectrum utilization.
  • this exemplary embodiment provides a block confirmation feedback control method, which can be applied to a first communication device of wireless communication, and the method includes:
  • Continuous data frames may be multiple data frames transmitted in multiple transmission connections.
  • each transmission connection occupies a transmission frequency band, and multiple transmission connections occupies multiple transmission frequency bands.
  • the transmission frequency band can be multiple Wi-Fi working frequency bands, such as 2.4GHz, 5.8GHz and 6-7GHz, etc. ;
  • the bandwidth occupied by multiple transmission connections in the same frequency band can be the same or different.
  • the bandwidth occupied by multiple transmission connections may be one or more of 20 MHz, 40 MHz, and 80 MHz.
  • the frequency range of the bandwidth occupied by each transmission frequency band may belong to the same Wi-Fi working frequency band, or may belong to different Wi-Fi working frequency bands.
  • the second communication device may determine the opening or termination status of each transmission connection indicated by the first communication device according to the control identifier. Confirm the feedback for the transmission connection termination block indicated to be terminated, and confirm the feedback for the transmission connection opening block indicated to be open.
  • the second communication device determines the block confirmation feedback of the continuous data frame that needs to be opened or terminated according to the first identification information.
  • the block acknowledgement feedback for each transmission connection of the continuous data frame is opened or terminated according to the control identifier.
  • Each connection data frame may also have a unique TID. Therefore, the first communication device may also set the TID in the message frame by the first communication device to further indicate that the control identifier instructs the second communication device to start or terminate the continuous data frame for which it is directed.
  • the block acknowledgement feedback control flag is used to indicate that the transmission connection for maintaining the associated management frame is in an open state.
  • the association management frame may include an association request frame and an association response frame, and may also include a re-association request frame, a re-association response frame, and the like.
  • the second communication device needs to associate with the first communication device when accessing the wireless network. Therefore, it is necessary to keep the block acknowledgement feedback of the transmission connection of the transmission associated frame open.
  • the second communication device can be associated with the first communication device.
  • sending the block confirmation feedback control identifier includes: sending a message frame carrying the confirmation feedback control identifier.
  • sending the block confirmation feedback control identifier includes: sending the last data frame of the continuous data frame carrying the confirmation feedback control identifier.
  • the block confirmation feedback control method further includes:
  • the second communication device may confirm the reception status of each data frame in the continuous data frame after receiving the continuous data frame, and send a BA to the first communication device according to the reception status of each data frame.
  • the block acknowledgement feedback is indicated in the message frame to terminate, and the block acknowledgement feedback is kept open for the transmission connection that requires data frame retransmission.
  • the block confirmation feedback of the transmission connection that needs to transmit the associated frame can be kept open.
  • sending the last data frame of the continuous data frame carrying the acknowledgement feedback control identifier includes:
  • Step 202 According to the indication of the block confirmation feedback control flag, open or terminate the block confirmation feedback of the transmission connection.
  • the first communication device may determine the reception status of the data frame of each transmission connection according to the BA fed back by the second communication device after sending the continuous data frames.
  • the first communication device may send a block confirmation feedback control identifier after receiving the BA.
  • the first communication device can close the block confirmation feedback of the transmission connection, that is, set the control flag of the transmission connection to terminate; for the completion of the data frame transmission and need to retransmit
  • the first communication device can maintain the block confirmation feedback of the transmission connection, that is, set the control flag of the transmission connection to open.
  • the first communication device may also send a message frame after all transmission connections have completed retransmissions, and may set the block confirmation feedback of the transmission connection of the transmission data frame to be terminated.
  • the block confirmation feedback control method further includes:
  • the first communication device may transmit multiple continuous data frames, and when the transmission of one continuous data frame is completed, the first communication device may control the block confirmation feedback of the transmission connection of the continuous data frame.
  • the block confirmation feedback control method further includes:
  • Each connection data frame may also have a unique TID. Therefore, the first communication device may also set the TID in the message frame by the first communication device to further indicate that the control identifier instructs the second communication device to start or terminate the continuous data frame for which it is directed.
  • the second communication device can improve the recognition accuracy of continuous data frames based on the TID and SN.
  • the second communication device may determine that the transmission connection for which the block confirmation feedback needs to be terminated.
  • the block confirmation feedback of the transmission connection that needs to transmit the associated frame can be kept open
  • the receiving end of the continuous data frame receives the feedback of the block acknowledgement (BA, Block ACK).
  • BA Block acknowledgement
  • the transmission connection of the receiving BA can be determined according to the load of the transmission connection, or the associated transmission connection can be used as the transmission connection of the receiving BA.
  • the foregoing multi-connection BA termination indication information may be carried in the last frame of the continuous data frame.
  • the sender of the data frame sets a threshold according to the statistics of the number of retransmissions in the past. If it is lower than this threshold, the sender of the data frame carries the multi-connection BA termination indication information in the last frame of the continuous data frame. After the receiving end of the data frame confirms the continuous data frame reception, it will feed back the BA. For example, if 1 is marked in the feedback BA, it is determined that the data frame does not need to be continuously retransmitted. After receiving the BA frame, the sending end and the receiving end of the data frame can Terminate the multi-connection BA process, and only keep the connection receiving the BA frame active. 2. If 2 is identified in the feedback BA, the multi-connection BA process is not terminated for the transmission connection that needs to be retransmitted.
  • the duration field of the BA frame sent by the receiving end can be set to: BA length + SIFS + retransmission duration.
  • the block confirmation feedback control flag further includes:
  • the first sending module 110 includes:
  • the first sending module 110 includes:
  • the receiving submodule 211 is configured to receive the block confirmation feedback control identifier carried in the last data frame of the continuous data frame.
  • the multimedia component 3008 includes a screen that provides an output interface between the device 3000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 3008 includes a front camera and/or a rear camera. When the device 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un appareil de commande de rétroaction d'accusé de réception de bloc, un dispositif de communication, ainsi qu'un support de stockage. Le procédé selon l'invention consiste : à envoyer, pour chacune des connexions de transmission multiples destinées à transmettre des trames de données continues, un identifiant de commande de rétroaction d'accusé de réception de bloc, cet identifiant de commande servant à indiquer la poursuite ou l'arrêt d'une rétroaction de confirmation de bloc de la connexion de transmission.
PCT/CN2019/124808 2019-12-12 2019-12-12 Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage Ceased WO2021114168A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19955846.1A EP4075696A4 (fr) 2019-12-12 2019-12-12 Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage
US17/784,574 US12250077B2 (en) 2019-12-12 2019-12-12 Method and apparatus for controlling block acknowledgement feedback
PCT/CN2019/124808 WO2021114168A1 (fr) 2019-12-12 2019-12-12 Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage
CN201980003532.1A CN113261221B (zh) 2019-12-12 2019-12-12 块确认反馈控制方法、装置、通信设备及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/124808 WO2021114168A1 (fr) 2019-12-12 2019-12-12 Procédé et appareil de commande de rétroaction d'accusé de réception de bloc, dispositif de communication et support de stockage

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Publication Number Publication Date
WO2021114168A1 true WO2021114168A1 (fr) 2021-06-17

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US (1) US12250077B2 (fr)
EP (1) EP4075696A4 (fr)
CN (1) CN113261221B (fr)
WO (1) WO2021114168A1 (fr)

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CN113261221A (zh) 2021-08-13
US12250077B2 (en) 2025-03-11
EP4075696A4 (fr) 2023-04-26
US20230006773A1 (en) 2023-01-05
EP4075696A1 (fr) 2022-10-19
CN113261221B (zh) 2023-04-11

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